243245238 has 16 divisors (see below), whose sum is σ = 497804736. Its totient is φ = 79196040.

The previous prime is 243245237. The next prime is 243245287. The reversal of 243245238 is 832542342.

It is a junction number, because it is equal to n+sod(n) for n = 243245199 and 243245208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243245237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471148 + ... + 471663.

It is an arithmetic number, because the mean of its divisors is an integer number (31112796).

Almost surely, 2^243245238 is an apocalyptic number.

243245238 is an abundant number, since it is smaller than the sum of its proper divisors (254559498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243245238 is a wasteful number, since it uses less digits than its factorization.

243245238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942859.

The product of its digits is 46080, while the sum is 33.

The square root of 243245238 is about 15596.3212970239. The cubic root of 243245238 is about 624.2350004498.

The spelling of 243245238 in words is "two hundred forty-three million, two hundred forty-five thousand, two hundred thirty-eight".